Comparing and measuring method for quantifying inner contour cord thread length of all-steel radial tire
A radial tire and contour cord technology, applied in the field of tire manufacturing, can solve the problems of high cost of time, manpower and material resources, and achieve the effects of improved production technology, convenient feasibility and cost reduction
Pending Publication Date: 2021-11-23
SHANDONG LINGLONG TIRE
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The cost of time, manpower and material resources consumed in the process of process technology improvement and product structure upgrade is extremely high
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
application example 1
[0053] see Figure 6 , Example: 9.00R20 specification, the flat width (outside positioning of the traveler) is 642mm, the steel wire arrangement of the traveler is 5-6-7-8-7-6-5, the diameter of the steel wire after glue application is 1.8mm, and the steel ring is formed Wrap 1 layer of wrapping cloth, thickness 0.88mm.
[0054] 1. The length of the steel wire to be stripped and cut off this time is 640mm.
[0055] 2. Construction flat width B: 642, 8 steel wires at the widest point of the steel ring, C is equal to the diameter of 4 steel wires + the thickness of 1 layer of cloth. According to the formula b=B-2C: b=642-2*(4*1.8+1*0.88)=625.84 (construction theoretical calculation length);
[0056] There is a difference between the construction theoretical design and the actual finished product, namely: 640-625.84=14.16≈14 (unit: mm).
[0057] Application case two;
[0058] see Figure 7 , Example: Take the 9.00R20 specification tire as an example, the flat width is 642mm,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the technical field of tire manufacturing, in particular to a comparing and measuring method for quantifying the inner contour cord thread length of an all-steel radial tire. The method comprises the following steps: marking connecting lines on the front and rear sides of a central steel wire at the bottommost layer of a section steel wire ring, and polishing off part of a tire body and wrapping cloth wound on a steel ring at the bottom until the steel wire of the steel ring is completely exposed; drawing an extension line of a middle steel wire of the steel ring to a tire body, stripping and cutting off; calculating the length of the inner contour cord thread, and measuring and recording the length of the stripped and cut steel wire as a; recording the theoretical construction length as b; the construction flat width being marked as B; the number of steel wires with the widest spacing of the steel ring being recorded as N; recording the size specification of the diameter of the steel wire as c, and recording the size specification of the thickness of the wrapping cloth as d; recording the layer number of the wrapping cloth as n; the construction theoretical length b being equal to B-2 * (N / 2 * c + n * d); and the difference value between the construction theoretical design and the actual finished product being equal to a-b. The technical mode is equivalent to adjustment of the construction flat width value, the method is feasible and convenient, and the solving efficiency of the problems is greatly improved.
Description
technical field [0001] The patent of the invention belongs to the technical field of tire manufacturing, specifically relates to the construction design of the all-steel radial tire structure, and is a new comparative measurement technology for the inner contour cord length of the finished tire. Background technique [0002] All-steel radial tire shoulder cord bending is a relatively common quality problem in the tire industry. There are many influencing factors. After molding and vulcanization, the finished X-ray imaging shoulder cord is not straight, that is, the cord is bent. This problem can easily lead to bulging of the finished product, and the tires are running at high speed and under heavy load conditions, which are easy to be damaged early and reduce the service life of the tires. [0003] The mechanism of this problem has an extremely important relationship with the flat width parameter of construction design: the flat width parameter is the linear distance of the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01B21/02
CPCG01B21/02
Inventor 王锋陈肖鑫王铭超刘占军张泽民李小龙
Owner SHANDONG LINGLONG TIRE